22443034420 has 12 divisors (see below), whose sum is σ = 47130372324. Its totient is φ = 8977213760.

The previous prime is 22443034409. The next prime is 22443034423. The reversal of 22443034420 is 2443034422.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15058725796 + 7384308624 = 122714^2 + 85932^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22443034423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561075841 + ... + 561075880.

It is an arithmetic number, because the mean of its divisors is an integer number (3927531027).

Almost surely, 2^22443034420 is an apocalyptic number.

22443034420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22443034420 is an abundant number, since it is smaller than the sum of its proper divisors (24687337904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22443034420 is a wasteful number, since it uses less digits than its factorization.

22443034420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122151730 (or 1122151728 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 22443034420 its reverse (2443034422), we get a palindrome (24886068842).

The spelling of 22443034420 in words is "twenty-two billion, four hundred forty-three million, thirty-four thousand, four hundred twenty".